Self-closing measuring-valve.



A. J. SWEET. SELF CLOSING MEASURING VALVE. APPLIOATIOI FILED AUG-10, 1901.

. 898,999 Patented Seph'15, 190s.

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UNITED sTAtrns Bunnie OFFICE.

.-\ RTIIL'R J. Slilllfi'l, OI" JACKSON, ICIIIGAX, AFSIGNOR OF ONE-HALF TO GEORGE W. SWEET, OI" ANN ARBOR. MH'HIGAN.

SELF-CLOSING MEASURING-VALVE.

Application filed August 10,

T 0 all whom it may concern: I Be it known that An'rnun J. SWEET, a f citizen of the United States, residing at Jackson, county of Jackson, State of Michigan, I have invented a certain new and useful Improvement in Sell-( losing Measuring-Valves, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a not of this s )ecification.

This invention re ates to self closing measuring valves; it has for its object an improved structure intended to close after there has passed through the valve :1 definite predetermined quantity of water.

In the drawings :F1gure 1, shows a longitudinal section with the valve open. Fig. 2, shows a longitudinal section with the valve closed.

The main casing 1, of the valve is a straight cylindrical tube rovided with cups 2 and 3, which are )rovidhd with coupling nipples 4 and 5. 'lthin the tubular easing 1, is located a diaphra m 6, provided with a "alve seat 7 with a cy inder 8, which extends from the valve seat toward the outlet of the casing; around the cylinder is an annular passage 24. The valve 9 seats on the valve seat 7, and is provided with a stem 10 that elwages through a diaphragm 11 at the outlet end of the cylinder 8. On the valve stem 10 is a piston 12, which reciproc-atcs in the cylinder 8. The wall of the cylinder 8 is 'novide-d with passages l3 and 14, intermediate the ends, and the piston 12 inits reciprocation may travel toward the. inlet and past the openings 11', but may not travel farcnough to pass or cover the openings 13. The diaphragm 11 which closes the cndof the cylinder which is toward the outletof the easm is provided with a small passage-way 15, t- 10 capacity of which may be adjusted by a screw 16 that extends into the diaphragm from outside the main casing.

The stem 10 of the valve 9 is actuated to open the valve. by a hand manipulated lever 18, pivotally connected to a pin 19 that en- 5 gages through the main easing. This lever I engages a push rod '21 with a pin and link joint; the )ush rod extends through the mam casin pae 'ing cap 22, and terminates with a PUSllTltll'llllG 23. In operation this valve is coupled to the Specification of Letters Patent.

Patented Sept. 15, 1908.

1907. Serial No. 387,983.

water pipes with the entrance end ot'the casing at t to end A, and with the deliver end at the end B. \Yater entering througi the nipple 4 is prevented from )assing through the casing by the seated valve; if, however, the valve be forced from its seat by manipulating the push rod 2], the water passes the valve through the opening in the valve sea and some part of it at once enters and fills the piston chamber behind the piston 12, entering the piston chamber through the openings 14.

The pressure of the water entering the easing tends to close the valve to its seat and the closure of the valve to its seat is obstructed by the water in the )iston chamber, which soon becomes caged t iereiu after the piston has passed the openings'14 toward the delivery end of the casing. After the piston has pas ed beyond these 0 )enings, it can only travel further by expo ing water from the iston chamber through the regulat-able outat 15, and the amount of [low for a given pressure of water can easily be determined experimentally and the structure set accordingly, after which for a given pressure of water only a certain amount can pass the mainvalve and escape through the outlet until the action shall have caused the main valve to close down entirely on its seat.

This device being made mainl from cylindrical tubes, is easily and cheaply made, and it is simple and ellicicnt in action. There are no small valves, or in fact any valves except the main valve, and no parts to fill and clog.

hat I claim is:

l. A measuring valve, havin in combinationa main casing, a cylinder therein having apertured ends and sides, a iston'stem extending within the cylinder t irough an apertured end thereof, and a valve carried on one end of said stem, ada' ted to close the ad'acent end of said c 'lind er, substantially as eseribcd.

2. measuring valve, having in combination a main easing, a cylinder therein having a terminal inlet portion and apertures through its side walls, a main valve adapted to ose the inlet portion, a piston within said cylinder, and a stem whcreon said main valve and said piston are fixed, passing through the opposite end of the cylinder from that adapted to be closed by said main valve, substantially as described.

3. A measuring "alve, having, in combination with a main easing, ertured ends and side walls inelosed within said easing, a closure member for one end of said cylinder, a piston wimin Said cylinder, a

stem whereon said closure member and 5: id regulating the piston are mounted, means for outflow-from sald eylmder, and means whereby said valvemay be manually described.

4. In a measuring valve, in' combination 7 with a casing having apertured end portions through which water may flow, a cylinder fixed therewithm, said cylinder being apera cylinder with a opened from the outside of said casing, sllhgtantlalLv as tured at the ends and side s need from the inner face of said casing along a portion of its length, a movable valve i piece aaapteu to close one end of said eylmder, :1 piston within said evlinder, a stem whereon said valve piece am said piston are mounted, and a minimally operated o )ening device connected with said stem, su bstantially as described.

j In testimony whereof, I sign. this specificai-tion in the presence of two witnesses.

ARTHUR J. SWEET. Vitnesses:

\VM. W'ILLIAMS, LEROY Non'rm'mr.

walls, and being 

